$2d2a9e5a block-function-declaration-order.js:1:1
  Registers: 7
  Blocks:    1
  Constants:
    [0] = Undefined

block0:
  [   0] GetLexicalEnvironment dst:reg4
  [   8] CreateLexicalEnvironment dst:reg5, parent:reg4, capacity:0, is_catch_environment:false
  [  20] CreateMutableBinding environment:reg5, `f1`, can_be_deleted:false
  [  30] NewFunction dst:reg6, shared_function_data_index:0
  [  48] InitializeLexicalBinding `f1`, src:reg6
  [  60] CreateMutableBinding environment:reg5, `f2`, can_be_deleted:false
  [  70] NewFunction dst:reg6, shared_function_data_index:1
  [  88] InitializeLexicalBinding `f2`, src:reg6
  [  a0] GetBinding dst:reg6, `f1`
  [  b8] DynamicSetVariableBinding `f1`, src:reg6
  [  c8] GetBinding dst:reg6, `f2`
  [  e0] DynamicSetVariableBinding `f2`, src:reg6
  [  f0] SetLexicalEnvironment environment:reg4
  [  f8] End value:Undefined